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French Defense - 2.Nf3 Variation

White develops the knight before pushing the d-pawn. Black uses that delay to grab the d4 square first and turn the French bishop into an active piece.

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Introduction

Many club players meet the French with 2. ♘︎f3 instead of 2. d4. The knight move is natural, but it leaves the d4 square empty for a move. That small delay is the whole story of this lesson. After 3. e5 White wants the space-gaining pawn on e5, but without a pawn on d4 behind it. Black hits that gap at once with ..c5 and then ..d4, so White can never build the c3–d4–e5 pawn chain of the Advance Variation. White switches to a King's Indian-style setup with d3, g3 and ♗︎g2. Black's plan is clear and easy to remember: trade on c3 to leave White's d3 pawn on a half-open file, then bring the light-squared bishop out with ..b6 and ..♗︎a6 or ..♗︎b7. In most French lines that bishop is Black's worst piece — here it becomes one of the best.

Lesson Content

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1. e4

1. e4 — the King's Pawn opening. White claims the center and opens diagonals for the queen and the light-squared bishop.

Center ControlDevelopment
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1. ..e6

Prepare to challenge the e4 pawn with your d-pawn next move.

1. ..e6 — the French Defense. Black prepares ..d5 to challenge the e4 pawn next move. The cost is that the e6 pawn shuts in Black's light-squared bishop on c8 — keep an eye on that bishop, because this lesson is about freeing it.

Center ControlPawn Structure
Alternative Moves
e5 — Also good — it leads to the Open Games. This lesson teaches the French, where Black fights the e4 pawn from a distance.
c5 — The Sicilian — also a strong reply, but a different opening with its own lessons.
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2. ♘︎f3

2. ♘︎f3 develops a piece and prepares castling, but it does not put a pawn on d4. In the main French lines (2. d4) White builds a big pawn center at once. That empty d4 square is what Black will aim at in this lesson.

Development
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2. ..d5

Challenge White's e4 pawn head-on.

2. ..d5 — the French plan as usual: the pawn hits e4, so White must decide what to do with it. White's main third moves: - 3. e5 — gains space; this lesson - 3. exd5 exd5 4.d4 — the same position as the French Exchange - 3. ♘︎c3 — the Two Knights line, defending e4 - 3. d3 — a ♔︎ing's Indian Attack setup

Center Control
Alternative Moves
c5 — Playable, but it turns the game into a Sicilian. The French move is the direct challenge to e4.
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3. e5

3. e5 pushes past Black's d5 pawn and gains space. The e5 pawn takes the f6 square from Black's g8 knight, so that knight will usually develop to e7 instead. The difference from the Advance Variation: there is no white pawn on d4 to support e5. If White cannot get one there, the e5 pawn stands alone.

SpacePawn Structure
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3. ..c5

White's d-pawn has not moved yet — take control of the square in front of it.

3. ..c5 takes control of d4 before White's d-pawn gets there. Now 4. d4 is still possible, but it only reaches the Advance Variation, where Black is fine. White's other tries: - 4. c3 — prepares d4 and is the main line - 4. b4 — the Wing Gambit, a pawn sacrifice to deflect the c5 pawn - 4. d4 — the Advance Variation

Center ControlPawn Structure
Alternative Moves
d4 — Also playable, but without ...c5 first, White's c3 hits the d4 pawn at once. Building with ...c5 first is more solid.
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4. c3

4. c3 prepares d4. If White gets the d-pawn there with c3 behind it, White has the full Advance pawn chain and the e5 pawn is safe.

Pawn Structure
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4. ..d4

White wants a pawn chain through the center — occupy the key square before White's d-pawn can.

4. ..d4! — this is the move White's early knight development allows. Black's pawn takes the d4 square itself, so White can never build the c3–d4–e5 chain. The pawn is safe: the c5 pawn and the d8 queen protect it, so ♘︎xd4 would just lose the knight to ..cxd4. Now the e5 pawn has no pawn behind it, and it will become a target for Black's pieces.

SpaceCenter ControlPawn Structure
Alternative Moves
♘︎c6 — Also good, but after 5.d4 the game reaches the normal Advance Variation. White gets the pawn chain that the knight-first move order gave Black a chance to prevent.
♕︎b6 — Playable, but the queen comes out early and White keeps the option of d4 with a strong pawn chain.
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5. d3

5. d3 gives up on d4 and plays a King's Indian-style setup: g3, the bishop to g2 and castling. The d3 pawn also protects the e4 square for a white knight. The drawback: no white pawn can ever protect the d3 pawn, so once Black aims pieces at it, White must guard it with pieces.

Pawn Structure
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5. ..♘︎c6

Develop a knight that guards your advanced pawn and attacks e5.

5. ..♘︎c6 develops and adds a third defender to the d4 pawn. The knight also attacks the e5 pawn, which no white pawn protects — only the f3 knight holds it for now.

DevelopmentPiece Activity
Alternative Moves
dxc3 — Equally good — it is the same plan in a different order. Developing the knight first keeps White guessing.
♕︎c7 — Also hits e5, but it is better to develop a minor piece before the queen.
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6. g3

6. g3 prepares ♗︎g2. The bishop will aim down the long diagonal toward the c6 knight, and once ..b6 is played the a8 rook behind it — something Black must keep in mind for the next moves.

DevelopmentKing Safety
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6. ..dxc3

Release the tension so White's d-pawn is left alone on a half-open file.

6. ..dxc3 trades the advanced pawn. Black gives up some space, but after White recaptures, the d3 pawn stands alone on the d-file with no black pawn in front of it — a target for Black's queen and rooks. The trade also takes away White's option of cxd4.

Pawn Structure
Alternative Moves
♕︎c7 — Also good: it keeps the space on d4 and adds pressure on e5. The pawn trade gives Black a simpler plan against d3.
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7. bxc3

7. bxc3 recaptures toward the center: the c3 pawn guards d4, so White keeps the option of d3–d4 later. The cost is that the a2 pawn has no pawn beside it, and the d3 pawn stands on a half-open file in front of Black's queen. 7. ♘︎xc3 is also possible, but then no c-pawn supports d4, and the d3 pawn stays stuck as a target.

Pawn Structure
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7. ..b6

Open a road for your light-squared bishop that goes around your own pawns.

7. ..b6 opens two roads for the light-squared bishop: a6, aimed at the d3 pawn, and b7, on the long diagonal. This is the key idea — the French bishop leaves the pawn chain through the queenside instead of staying stuck behind e6.

DevelopmentPiece Activity
Alternative Moves
♘︎ge7 — Also fine — developing the knight is always useful. The pawn move first fixes the bishop problem before White can stop it.
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8. ♗︎g2

8. ♗︎g2 completes the fianchetto. The bishop now looks along the long diagonal; only White's own f3 knight stands between it and the c6 knight. If that knight moves away, the bishop hits c6 — and the a8 rook behind it.

DevelopmentPiece Activity
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8. ..♕︎d7

Protect your c6 knight and line up a heavy piece against the d3 pawn.

8. ..♕︎d7 does two jobs. The queen protects the c6 knight, so 9. ♘︎d4 no longer works — Black simply takes the knight with ..cxd4. The queen also lines up on the half-open d-file against the d3 pawn.

ProphylaxisPiece Activity
Alternative Moves
♗︎a6 — Too early: 9.♘︎d4! attacks the c6 knight with the knight and the g2 bishop together, and the a8 rook stands behind it on the long diagonal. Black must retreat with ...♗︎b7 and the bishop trip was wasted.
♘︎ge7 — Also good — the e7 knight guards c6 too. But ...♕︎d7 guards c6 and lines up against the d3 pawn in one move, while the e7 knight blocks the f8 bishop for now.
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9. O-O

9.O-O brings White's king to safety. White's next ideas are ♕︎a4, attacking along the a4–e8 diagonal, or ♘︎a3 heading for b5 or c4.

King Safety
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9. ..♗︎a6

Bring your light-squared bishop to the diagonal that points at d3.

9. ..♗︎a6 — the French bishop has its best diagonal. Together with the d7 queen it attacks the d3 pawn twice, and only White's queen protects it. Taking on d3 is not automatic: after 10. ♕︎a4, taking on d3 loses a piece, because 11. ♘︎e1 attacks the bishop and opens the g2 bishop onto the c6 knight. But from now on White must spend moves to keep the d3 pawn.

Piece ActivityThreat
Alternative Moves
♗︎b7 — A good square too, but it does not put any pressure on d3, so White has more time for the queenside.
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10. ♕︎a4

10. ♕︎a4 is White's most active reply. The queen attacks the a6 bishop, which nothing protects, and it also attacks the c6 knight. Black must save the bishop, or White simply takes it.

ThreatTempo
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10. ..♗︎b7

Your bishop is attacked and so is your c6 knight — solve both with one move.

10. ..♗︎b7 solves both problems with one move: the bishop escapes the attack and adds a second defender to the c6 knight. On b7 it stands on the long diagonal, facing White's g2 bishop. White's queen on a4 is now far from the kingside and will need another move to find a better square.

ProphylaxisPiece Activity
Alternative Moves
♘︎b8 — It protects the a6 bishop, but the knight goes back to its starting square. Black loses two moves of development and White gets a freer game.
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11. ♘︎a3

11. ♘︎a3 develops the last white knight. From a3 it can jump to b5 or c4 and join the fight on the queenside.

Development
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11. ..♘︎ge7

Develop your kingside knight so it also guards the c6 knight.

11. ..♘︎ge7 develops the kingside knight. It protects the c6 knight a third time and can go on to g6, where it attacks the e5 pawn, or to f5. Once the knight moves on, the f8 bishop comes out to e7 and Black castles. Black has a solid, playable position: an active light-squared bishop, a target on d3 and a lonely pawn on e5.

DevelopmentKing Safety
Alternative Moves
a6 — Stops ♘︎b5 and prepares ...b5 against the queen, but it delays development — the g8 knight and f8 bishop are still at home.

Key Takeaways

  • 2.♘︎f3 leaves d4 empty — ...c5 and ...d4 take that square before White can
  • Without a pawn on d4, the e5 pawn has no pawn support and becomes a target
  • ...dxc3 leaves White's d3 pawn alone on the half-open d-file
  • ...b6 frees the French light-squared bishop via a6 or b7
  • Watch the g2 bishop's long diagonal: keep the c6 knight protected (...♕︎d7)

Now play it through

Step through every move on a real board, try the wrong ones, and ask Knighty why they fail.

Practice Interactively

Related Lessons

Summary

You've learned how to meet 2. ♘︎f3 in the French. Because White delays d4, Black plays ..c5 and ..d4 to take that square first, so White never gets the Advance pawn chain. After ..dxc3, the d3 pawn is a target, and ..b6 brings the French bishop out to a6 or b7, where it is active instead of stuck behind e6.

Next in this opening family

French Defense - Advance Variation

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